UNIT I A REVIEW OF BASIC MATH OPERATIONS .............................................. 1 PART 1 WHOLE NUMBERS.................................................................................3
1.1 Place Value...................................................................................................3
1.2 Comparing and Rounding Whole Numbers....................................................... 7
1.3 Adding and Subtracting Whole Numbers ....................................................... 10
2.7 Dividing a Decimal by a Whole Number ............................................................ 37
2.8 Dividing by a Decimal...................................................................................... 39
PART 3 FRACTIONS ........................................................................................... 46
5.5 Analyzing Word Problems Asking for Percentage ................................................ 88
5.6 Finding the Rate (percent) One Number of Another .............................................. 89
5.7 Analyzing Word Problems Asking for Percent (rate)............................................. 91
5.8 Percent of Increase or Decrease ....................................................................... 92
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5.9 Analyzing Word Problems Asking for Percent of Increase or Decrease ................. 93
5.10 Finding a Number When a Percent of It Is Known.............................................. 94
5.11 Analyzing Word Problems Asking for the Base/Original Amount ........................ 96
UNIT I REVIEW ................................................................................................... 101
UNIT II USING THE 9 BASIC KEYS OF A CALCULATOR ........................................ 107
PART 6 CALCULATOR FEATURES........................................................................ 109
PART 7 BASIC OPERATIONS ............................................................................... 111
7.5 Grand Total ..................................................................................................... 135
PART 8 MULTIPLICATION...................................................................................... 145
10.6 Percent - Finding the Rate .............................................................................. 181
10.7 Percent - Finding the Base.............................................................................. 183
UNIT II REVIEW .................................................................................................... 188
UNIT III USING THE ACCUMULATOR KEYS OF A CALCULATOR ............................. 191 PART 11 ACCUMULATIVE MULTIPLICATION .......................................................... 193PART 12 NEGATIVE MULTIPLICATION ................................................................... 199PART 13 CONSTANT MULTIPLICATION WITH ACCUMULATION ............................... 201PART 14 DIVISION - ACCUMULATION OF QUOTIENTS ............................................ 207PART 15 NEGATIVE DIVISION ................................................................................ 209PART 16 CONSTANT DIVISION WITH ACCUMULATION ............................................ 211PART 17 MIXED CALCULATIONS - ADDITION AND SUBTRACTION
FOLLOWED BY MULTIPLICATION AND DIVISION .................................................... 215PART 18 MIXED CALCULATIONS – MULTIPLICATION AND DIVISION
FOLLOWED BY ADDITION AND SUBTRACTION ...................................................... 217PART 19 MIXED CALCULATIONS – MULTIPLICATION AND DIVISION
FOLLOWED BY MUTIPLICATION AND DIVISION ...................................................... 219UNIT III REVIEW ..................................................................................................... 223
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UNIT IV BASIC BUSINESS APPLICATIONS .............................................................. 225PART 20 INVOICES AND DISCOUNTS ..................................................................... 227
21.7 Payroll Register – Salary Plus Commission ..................................................... 265
21.8 Payroll Register – Salary Plus Bonus .............................................................. 268
PART 22 SIMPLE INTEREST ................................................................................ 272
22.1 Simple Interest – Finding the Interest .............................................................. 272
22.2 Simple Interest – Finding the Rate .................................................................. 274
22.3 Simple Interest – Finding the Principal ............................................................ 276
22.4 Simple Interest – Finding the Time .................................................................. 278
22.5 Simple Interest – Finding the Maturity Value .................................................... 280
UNIT IV REVIEW................................................................................................... 284
VOLUME 1
UNIT I A REVIEW OF BASIC MATH OPERATIONS .............................................. 1 PART 1 WHOLE NUMBERS.................................................................................3
1.1 Place Value...................................................................................................3
1.2 Comparing and Rounding Whole Numbers....................................................... 7
1.3 Adding and Subtracting Whole Numbers ....................................................... 10
1.4 Multiplying Whole Numbers .......................................................................... 13
1.5 Dividing Whole Numbers............................................................................... 15
PART 2 DECIMAL OPERATIONS........................................................................ 21
2.1 Decimal Place Value .................................................................................... 21
2.2 Comparing and Ordering Decimals ................................................................. 26
2.3 Rounding Decimals ....................................................................................... 28
2.4 Adding Decimals............................................................................................ 30
2.5 Subtracting Decimals ..................................................................................... 32
2.6 Multiplying Decimals....................................................................................... 35
2.7 Dividing a Decimal by a Whole Number ............................................................ 37
2.8 Dividing by a Decimal...................................................................................... 39
PART 3 FRACTIONS ........................................................................................... 46
3.1 Fractions ....................................................................................................... 46
3.2 Types of Fractions .......................................................................................... 46
3.3 Finding Equivalent Fractions............................................................................. 46
3.4 Fractions In Lowest Terms................................................................................ 47
3.5 Mixed Numbers................................................................................................ 48
3.6 Least Common Denominator (LCD) ................................................................... 49
3.7 Comparing and Ordering Fractions .................................................................... 50
3.8 Adding Like Fractions....................................................................................... 51
3.9 Adding Unlike Fractions ................................................................................... 52
3.10 Subtracting Fractions ..................................................................................... 54
3.11 Subtracting Mixed Fractions ........................................................................... 56
3.12 Multiplying Fractions....................................................................................... 58
3.13 Multiplying Mixed Numbers ............................................................................. 60
3.14 Dividing Fractions ........................................................................................... 62
3.15 Dividing Mixed Numbers .................................................................................. 64
PART 4 CONVERSIONS ........................................................................................ 73
4.1 Converting Fractions to Decimals ....................................................................... 73
4.2 Converting Decimals to Fractions ....................................................................... 75
4.3 Converting Decimal mixed Numbers to Fractional Equivalents............................... 76
PART 5 PERCENTS .............................................................................................. 82
5.1 Percent............................................................................................................. 82
5.2 Percents and Decimals ..................................................................................... 82
5.3 Percents and Fractions ..................................................................................... 84
5.4 Percentage Formulas ........................................................................................ 86
5.5 Analyzing Word Problems Asking for Percentage ................................................ 88
5.6 Finding the Rate (percent) One Number of Another .............................................. 89
5.7 Analyzing Word Problems Asking for Percent (rate)............................................. 91
5.8 Percent of Increase or Decrease ....................................................................... 92
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5.9 Analyzing Word Problems Asking for Percent of Increase or Decrease ................. 93
5.10 Finding a Number When a Percent of It Is Known.............................................. 94
5.11 Analyzing Word Problems Asking for the Base/Original Amount ........................ 96
UNIT I REVIEW ................................................................................................... 101
UNIT II USING THE 9 BASIC KEYS OF A CALCULATOR ........................................ 107
PART 6 CALCULATOR FEATURES........................................................................ 109
PART 7 BASIC OPERATIONS ............................................................................... 111
7.1 Addition .......................................................................................................... 111
7.2 Subtraction...................................................................................................... 118
7.3 Credit Balances .............................................................................................. 124
7.4 Subtotal........................................................................................................... 130
7.5 Grand Total ..................................................................................................... 135
PART 8 MULTIPLICATION...................................................................................... 145
8.1 Multiplication ................................................................................................... 145
8.2 Sequential Multiplication .................................................................................. 151
8.3 Constant Multiplication .................................................................................... 153
PART 9 DIVISION ................................................................................................. 157
9.1 Division ........................................................................................................... 157
9.2 Constant Division - Divisor ................................................................................. 161
9.3 Constant Division - Dividend .............................................................................. 163
PART 10 FRACTIONS AND PERCENTS ................................................................. 170
10.1 Fractions ....................................................................................................... 170
10.2 Fractions - Addition and Subtraction ................................................................ 172
10.3 Fractions - Multiplication and Division .............................................................. 174
10.4 Percents........................................................................................................ 177
10.5 Percentage ................................................................................................... 179
10.6 Percent - Finding the Rate .............................................................................. 181
10.7 Percent - Finding the Base.............................................................................. 183
UNIT II REVIEW .................................................................................................... 188
UNIT III USING THE ACCUMULATOR KEYS OF A CALCULATOR ............................. 191 PART 11 ACCUMULATIVE MULTIPLICATION .......................................................... 193PART 12 NEGATIVE MULTIPLICATION ................................................................... 199PART 13 CONSTANT MULTIPLICATION WITH ACCUMULATION ............................... 201PART 14 DIVISION - ACCUMULATION OF QUOTIENTS ............................................ 207PART 15 NEGATIVE DIVISION ................................................................................ 209PART 16 CONSTANT DIVISION WITH ACCUMULATION ............................................ 211PART 17 MIXED CALCULATIONS - ADDITION AND SUBTRACTION
FOLLOWED BY MULTIPLICATION AND DIVISION .................................................... 215PART 18 MIXED CALCULATIONS – MULTIPLICATION AND DIVISION
FOLLOWED BY ADDITION AND SUBTRACTION ...................................................... 217PART 19 MIXED CALCULATIONS – MULTIPLICATION AND DIVISION
FOLLOWED BY MUTIPLICATION AND DIVISION ...................................................... 219UNIT III REVIEW ..................................................................................................... 223
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UNIT IV BASIC BUSINESS APPLICATIONS .............................................................. 225PART 20 INVOICES AND DISCOUNTS ..................................................................... 227
20.1 Cash Discounts ............................................................................................... 227
20.2 Trade Discounts .............................................................................................. 229
20.3 Chain Discounts .............................................................................................. 230
20.4 Invoices .......................................................................................................... 233
PART 21 PAYROLL REGISTERS ............................................................................ 242
21.1 Payroll ........................................................................................................... 242
21.2 Payroll Register – Straight Salary ..................................................................... 243
21.3 Payroll Register – Hourly Wage ....................................................................... 248
21.4 Payroll Register – Piece Rate .......................................................................... 256
21.5 Payroll Register – Commissions ...................................................................... 261
21.6 Payroll Register – Straight Commission ........................................................... 262
21.7 Payroll Register – Salary Plus Commission ..................................................... 265
21.8 Payroll Register – Salary Plus Bonus .............................................................. 268
PART 22 SIMPLE INTEREST ................................................................................ 272
22.1 Simple Interest – Finding the Interest .............................................................. 272
22.2 Simple Interest – Finding the Rate .................................................................. 274
22.3 Simple Interest – Finding the Principal ............................................................ 276
22.4 Simple Interest – Finding the Time .................................................................. 278
22.5 Simple Interest – Finding the Maturity Value .................................................... 280
UNIT IV REVIEW................................................................................................... 284